頁籤選單縮合
題 名 | 木本樹種淨化臭氧與二氧化氮能力之評估(2)=Evaluation of Tree Species for Absorption and Tolerance of Ozone and Nitrogen Dioxide(2) |
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作 者 | 李鎮宇; 余金益; 王亞男; 姜家華; 孫岩章; 宋烱輝; | 書刊名 | 國立臺灣大學農學院實驗林研究報告 |
卷 期 | 11:4=218 1997.12[民86.12] |
頁 次 | 頁31-47 |
分類號 | 373.13 |
關鍵詞 | 臭氧; 二氧化氮; 沈降速率; 抗耐性; 指標植物; Ozone; Nitrogen dioxide; Deposition velocities; Tolerance; Indicator species; |
語 文 | 中文(Chinese) |
中文摘要 | 本計畫以20個樹種對二氧化氮及臭氧進行吸收及耐性試驗,以獲得各樹種之沈降 速率、最低致病濃度及病徵等資料。提供日後環保公園淨化臭氧及二氧化氮空氣污染及做為 指標樹種的參考。 試驗結果顯示,在苗木葉片對臭氧之沈降速率方面,不論在樹種間,濃度間及樹種與濃 度的交感效應均呈顯著差異。即可經由在不同污染濃度下,選擇沈降速率高的樹種,達到綠 化及淨化臭氧及二氧化氮空氣污染之目的。對200ppb臭氧之沈降速率,以象牙木、密花山巴 豆、嶺南白蓮茶較高;對400ppb臭氧的沈降速率以嶺南白蓮茶、南投石櫟、奧氏虎皮楠、密 花山巴豆、小芽新木薑子為高,均為理想環保公園樹種。 在各樹種之耐性方面,二氧化氮僅在1200ppb時,過山香、奧氏虎皮楠、嶺南白蓮茶及 杜英出現病徵;臭氧則有杜英在400ppb及嶺南白蓮茶在600ppb時出現病徵,屬較敏感之臭 氧污染指標植物。另外,象牙木、木荷、過山香及毽子櫟在800ppb時出現病徵;奧氏虎皮楠、 赤皮在1000ppb時亦出現病徵。 |
英文摘要 | Twenty tree species were tested for O□ and NO□ absorption and tolerance. The loading rate and lowest concentration of these gases causing damage were measured, and the characteristics of injury were recorded. Using this information, tree species best able to tolerate and remove these important urban air pollutants can be selected for planting along streets and in urban parks. Ozone loading rates were significantly different between species, ozone concentrations and ozone-tree species interactions. At 200 ppb O□, trees with the highest loading rates were Diospyros ferrea, Antidesmajaponicum var. densiflorum and Ehretia thyrsiflora. At 400 ppb O□, E. thyrsiflora, Pasania nantoensis, Daphniphyllum glaucescens subsp. Oldhamii, A. japonicum var. densiflorum and Neolitsea aciculate exhibited the highest loading rates. These species would be suitable in urban parks. In tolerance tests, Elaeocarpus sylvestris and Ehretia thyrsiflora were mostsensitive to O□ and suffered injury at 400 ppb O□ and 600 ppb O□, respectively. The most tolerant species were D. ferrea, S. superba, Clausena excavate, and Cyclobalanopsis sessilifolia, which did not exhibit injury until subjected to 800 ppb O□, and Cyclobalanopsis gilva and D. glaucescens subsp. Oldhamii, which were damaged only by 1000 ppb O□. Only 4 tree species, D. glaucescens subsp. Oldhamii, Ehretia thrysiflora, Elaeocarpus sylvestris and Clausena excavata were injured by 1200 ppb NO□, the highest concentration used in these experiments. |
本系統中英文摘要資訊取自各篇刊載內容。